The rabbit's long ears, which can be more than 10 cm (4 in) long, are probably an adaptation for detecting predators. They have large, powerful hind legs. The two front paws have 5 toes, the extra called the dewclaw.
However, Moorish idol larvae spend a long time drifting through the open ocean before they mature, so regional populations donât remain isolated enough to develop particular traits. Because of its beauty and its identity as a quintessential reef fish, the Moorish idol is a very popular fish in the aquarium trade.
The deep sea anglerfish is one of the most bizarre-looking fish in the sea. There are more than 200 species of anglerfish, most of which live in the dark depths of the Atlantic and Antarctic oceans. They are dark grey to dark brown in color, have huge heads and enormous crescent-shaped mouths filled with sharp, translucent teeth.